/*
 * Copyright 2012 Gregor Schauer
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package at.schauer.gregor.vienna.example.common.entity;

import at.schauer.gregor.vienna.annotation.Entity;
import at.schauer.gregor.vienna.annotation.Id;
import at.schauer.gregor.vienna.annotation.Names;
import at.schauer.gregor.vienna.identifier.SequenceGenerator;

import java.util.Set;

/**
 * @author Gregor Schauer
 */
@Entity(name = "author")
@Id(name = "id", keyGenerator = SequenceGenerator.class)
public class Author extends Person {
	private Set<Book> books;

	private Author() {
	}

	@Names({"name", "books"})
	public Author(String name, Set<Book> books) {
		super(null, name);
		this.books = books;
	}

	@Override
	public boolean equals(Object obj) {
		if (this == obj) return true;
		if (obj == null || getClass() != obj.getClass()) return false;

		Author author = (Author) obj;

		return !(books != null ? !books.equals(author.books) : author.books != null);
	}

	@Override
	public int hashCode() {
		return books != null ? books.hashCode() : 0;
	}
}
